-76.3% is the change from 211 to 50
Calculation steps:
[( 50 - 211 ) ÷ 211] x 100 = -76.3%
Formula
Percentage change = [(50 - 211) / 211] x 100
Subtract the new number by the original number
50 - 211 = -161
-161 ÷ 211 = -0.7630331753554502
-0.7630331753554502 x 100 = -76.3%